Control cartridge for a single-lever mixer fitting

F - Mech Eng,Light,Heat,Weapons – 16 – K

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F16K 11/16 (2006.01) F16K 11/074 (2006.01) F16K 27/04 (2006.01)

Patent

CA 2118966

In a plumbing assembly, a control cartridge for a single-lever mixer fitting is small enough to be installed into the mouth region of a discharge arm. The shut-off elements include a first control disk, which is fixed to the fitting housing and a second control disk, which can be rotated by an actuating lever. The control disks preferably consist of ceramic and have, in each case, two through-passages, one each for cold and hot water. Upon rotation of the fitting, first the cold-water through-passage and then hot-water through-passage are released, and, subsequently, the cold-water through-passage is throttled. With exclusively one rotary movement of the lever, the following flow conditions result: cold - mixed - hot. The resulting water through-flow remains at least approximately constant after achieving the maximum cold-water through-flow.

Dans un assemblage de plomberie, une cartouche de commande pour un mitigeur à levier unique est assez petite pour être installée à l'entrée d'un bras de décharge. Les éléments d'arrêt comprennent un premier disque de réglage qui est fixé au logement du mitigeur et un deuxième disque de réglage que l'on peut faire tourner par un actionneur à levier. Les disques de réglage sont construits préférablement en céramique et sont constitués chacun de deux passages d'écoulement, l'un pour l'eau froide et l'autre pour l'eau chaude. Lors de la rotation du mitigeur, le passage d'eau froide s'ouvre d'abord, puis celui de l'eau chaude, et par la suite le passage d'eau froide diminue. Avec exclusivement un mouvement rotatif du levier, les écoulements deviennent : froid - combiné - chaud. L'écoulement demeure approximativement constant après l'écoulement maximal d'eau froide.

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